Home / 8,788.18-12,127.67-4,809.28

Finding the Fourth Proportional to 8,788.18, 12,127.67 and 4,809.28

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Solution

The fourth proportional to 8,788.18, 12,127.67 and 4,809.28 is: 6,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.18 : 12,127.67 = 4,809.28 : x
  2. Step 2: Convert to fraction form
    8,788.18/12,127.67 = 4,809.28/x
  3. Step 3: Cross multiply
    8,788.18x = 12,127.67 × 4,809.28
  4. Step 4: Simplify right side
    8,788.18x = 58,325,360.78
  5. Step 5: Solve for x
    x = 58,325,360.78/8,788.18
  6. Step 6: Final answer
    x = 6,636.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.